Keith Olbermann is abruptly leaving MSNBC. The network announced that Friday's night's 'Countdown' show will be Olbermann's last.

This past November the primetime host was suspended "indefinitely" from MSNBC. Olbermann contributed to the campaigns of three Democratic candidates during election season, including Arizona Congresswoman Gabrielle Giffords.

Shortly after Olbermann's suspension, the host was welcomed back to MSNBC. He demanded an apology from the network before returning to his position.